pith. sign in
Pith Number

pith:RQXZPDS7

pith:2013:RQXZPDS7Z5REMYQYX4ARYYHVVK
not attested not anchored not stored refs pending

Wormhole geometries in Eddington-inspired Born-Infeld gravity

Francisco S. N. Lobo, M. K. Mak, Sergey V. Sushkov, Tiberiu Harko

arxiv:1307.1883 v1 · 2013-07-07 · gr-qc · astro-ph.HE · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{RQXZPDS7Z5REMYQYX4ARYYHVVK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp
2 Internet Archive
3 Author claim open · sign in to claim
4 Citations open
5 Replications open
Portable graph bundle live · download bundle · merged state
The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.
Receipt and verification
First computed 2026-05-18T01:29:47.225095Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

8c2f978e5fcf62466218bf011c60f5aa970b7a6e95d762518af81ce34c6bf199

Aliases

arxiv: 1307.1883 · arxiv_version: 1307.1883v1 · doi: 10.48550/arxiv.1307.1883 · pith_short_12: RQXZPDS7Z5RE · pith_short_16: RQXZPDS7Z5REMYQY · pith_short_8: RQXZPDS7
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/RQXZPDS7Z5REMYQYX4ARYYHVVK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8c2f978e5fcf62466218bf011c60f5aa970b7a6e95d762518af81ce34c6bf199
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "2e1ca70229d5db7064a5747545fbdfc5d80ae597998a06d7e36a2251d877e3b2",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-07T16:37:02Z",
    "title_canon_sha256": "4c32236bfc8275cd304db21d3a040f54f57b0dde481f30cbde135b5b9b0529d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1883",
    "kind": "arxiv",
    "version": 1
  }
}